Mental health patient who escaped in custody

A man who escaped from an Orange County mental health facility and was believed to be a danger to school children has been taken into custody, police said Saturday.

Norris Nguyen, 23, returned to the Santa Ana-area facility a day after walking away from there while under staff supervision. Police then took him to jail on an outstanding arrest warrant, Garden Grove Lt. John Keely said.

Nguyen's escape prompted a warning to the public to be on the lookout for him. Police asserted that Nguyen had threatened a Garden Grove elementary school which he once attended. They said he was fixated on a teacher and a particular grade at the school.

In August 2011, police said Nguyen also tried to walk into the Westminster police station armed with an unloaded assault rifle, saying he wanted to force a suicide-by-cop.

That same month, Nguyen threatened the school. Police later discovered he had an "extensive manifesto" in which he said he is trying to help children.

Nguyen has been in and out of treatment, and clinical psychologists believe he suffers from schizophrenia.